Organic light emitting diode devices using thermostable hole-injection and hole-transport compounds
作者： Xiaobo Shi , Igor Sokolik
DOI:
关键词:
摘要: The present invention relates to multi-layered organic light emitting diode devices having hole-injection and/or hole-transport layers comprising aryl amine compounds with relatively high glass transition temperatures (i.e., thermostable compounds). Such OLED allow for a staircase change in the energy difference of holes and electrons as they migrate from electrodes toward emitter layer, resulting lower operating voltage quantum yield luminescence given current density. also microdisplay compounds.
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